Effect of Al addition and heat treatment on the microstructures and corrosion resistance of Mg-Cu alloys

作     者：X.W.Wang W.Wang W.Chen D.M.Chen X.W.Wang;W.Wang;W.Chen;D.M.Chen

作者机构：Shi-changxu Innovation Center for Advanced MaterialsInstitute of Metal ResearchChinese Academy of SciencesShenyang 110016China College of Material Science and EngineeringUniversity of Science and Technology of ChinaShenyang 110016China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2022年第98卷第3期

页      面：219-232页

核心收录：

学科分类：080503[工学-材料加工工程] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 080201[工学-机械制造及其自动化] 

基　　金：financially supported by the Foundation of Chinese Academic of Sciences(No.CXJJ-17-M158) the National Natural Science Foundation of China(No.51701226) 

主　　题：Magnesium Intermetallics Weight loss EIS(electrochemical impedance spectroscopy) 

摘      要：The effects of Al content and annealing condition on the microstructures and corrosion performances of Mg-3 wt.%Cu-xAl(x=0,4 wt.%,8 wt.%)alloys were *** Mg-3 wt.%Cu alloy contains Mg_(2)Cu phase,but Al-bearing alloys contain MgAlCu and Mg_(17)Al_(12) *** Mg_(2)Cu and MgAlCu phases exhibit much higher Volta potential compared to Mg_(17)Al_(12) and α-Mg,and their volume fractions are related to Al content of alloys and annealing *** weight loss measurement and electrochemical tests are conducted to explore the corrosion performances of *** close relationship between weight loss rate of alloys and volume fraction of Cu-bearing phases indicates that the corrosion performances of alloys can be controlled by adjusting Al content of alloys and annealing conditions.